As the second largest state in Australia, Queensland boasts some of the longest stretches of coastline and the greatest number of marine reserves in the country. Within this, it contains an enormous number of marine habitats that sustains a huge biodiversity of marine species, ranging from coral to critically endangered sea turtles. However, all of these species and habitats are under threat from a wide range of human impacts. These include broad scale impacts such as climate change and marine debris, down to localised impacts such as the urban development of a local wetland. Individually, these impacts may not be huge; however, combined they are threatening Queensland's marine species and habitats.